One Wisconsin school district took the rare step of sending an email to parents warning about a new social media challenge that could cause "serious harm".
Memorial Day became a federal holiday in 1971. Here is a look at how Americans have celebrated through the years while also honoring those who made the ultimate sacrifice for their country.
When Alex, a street portrait photographer known as PortraitGeek, offered to take a photo of Ada, he didn't know how much it would mean to him personally.